The concept of software implemented in the real processes was collected and developed in different ways, but rarely with the actual ability to be incarnate structures and algorithms of the code to people and social processes. Socialfiction.org, author of the psychogeographical . walk is one of these rare cases, as it can be applied to an imaginary linked to the essence of automatic structures (made to measure the integrated electronics) to organic dimensions, while preserving the original characteristics . L-Expression , which stands for Landscape-Expressions, is a formal language for describing the landscape. A 'exoskeleton language' as defined by the person who created, made up of functions and arguments that go far beyond the unvarnished description of the movements step by step. This includes in fact functions as OBS, ie observations, observations on the territory, PML, Psychogeographical Mark-up Language, or other information or psychogeographical, and all can be nested into each other, for a necessary contextualization. Although still at an early stage in this project are already excellently summarized the ability to marry the features of the software creators with the infinite imaginative power of language.